AoE4 dont start... please help

Hello,
I use Steam.
The game no longer starts.
After starting there is a black screen for a short moment and the game closes again.
I tried everything:

  1. started as admin
  2. checked for errors in Steam
  3. Compatibility checked
  4. firewall deactivated
  5. everything is deactivated in autostart
  6. all updates updated (graphics card priority) 7
  7. In the end I even reinstalled AoE4 and Steam.
  8. directx 12 is on it.

what is the problem?
I really hope that someone could help me.